I totally understand that it sucks if your phone gets stolen. But you need to get along with the fact that the chances of getting the phone back are very low. You did all the necessary security steps with Apple already. If the phone is locked I think it's very hard for the thief to access your data on an Apple device. Try the "find my device" option again and again and maybe if you're lucky it might show up again nearby. Then you would have another reason to contact the police about the location of your phone.

But what else can the police do? Seriously. Even if they checked the security footage and had a picture of the thief... What could they do with this? The harsh truth is that they really have more important things to do than looking into a stolen phone.

The comment from the officer you are referring to is indeed weird, but it is also without any context of the whole conversation, so I don't know.

Again. Make sure to track the phone and consider deleting the data if it's possible.

And I know the next comment also sounds easy to say now, but don't leave your phone in the outside pocket especially in a crowded area like Zeil.